Home / 126,421.94-174,467.57-72,707.00

Finding the Fourth Proportional to 126,421.94, 174,467.57 and 72,707.00

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Solution

The fourth proportional to 126,421.94, 174,467.57 and 72,707.00 is: 100,338.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,421.94 : 174,467.57 = 72,707.00 : x
  2. Step 2: Convert to fraction form
    126,421.94/174,467.57 = 72,707.00/x
  3. Step 3: Cross multiply
    126,421.94x = 174,467.57 × 72,707.00
  4. Step 4: Simplify right side
    126,421.94x = 12,685,012,376.12
  5. Step 5: Solve for x
    x = 12,685,012,376.12/126,421.94
  6. Step 6: Final answer
    x = 100,338.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.